July 08, 2020, 12:35:15 AM
collapse
collapse

Author Topic: Help 2013 fusion p0171 LTFT 25%  (Read 307 times)

Offline TaurusAuto

  • Newbie
  • *
  • Thank You
  • -Given: 0
  • -Received: 0
  • Posts: 3
  • Ecobooster
Help 2013 fusion p0171 LTFT 25%
« on: May 05, 2020, 01:31:37 PM »
Am having a very difficult time with a p0171 on a 2013 fusion 1.6l. Ford dealer diagnosed as needing injectors and a intake manifold gasket. Has since had injectors, high pressure pump, hi and low fuel pressure sensors, upstream 02 sensor, Evap purge valve and line assy., intake gasket, and oil separator gasket. PCV hose and vvt solenoids per ford tsb for a p0016. Long term fuel trim at idle is 25%.

Offline SHOdded

  • Forum Supporters
  • Elite Member
  • *
  • Beltsville, MD
  • Thank You
  • -Given: 13013
  • -Received: 4215
  • Posts: 15887
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Offline TaurusAuto

  • Newbie
  • *
  • Thank You
  • -Given: 0
  • -Received: 0
  • Posts: 3
  • Ecobooster
Re: Help 2013 fusion p0171 LTFT 25%
« Reply #2 on: May 08, 2020, 03:12:52 PM »
 No issues overheating or coolant loss. I do know of the safety recall. Noticed signs of fire damage on plastic pieces here and there. Am unsure of the vehicle history. It also has heat tabs on motor. So may have been replaced. Car has less than 60k on it. Have smoke tested several times tightened all charge pipe clamps. Low side fuel pressure is at 70psi at idle. High fuel pressure Is close to desired at all times. Have even replaced valve cover as I removed it to check the plastic check valve. That I guess is their version of a PCV valve. Car runs good fuel trims come down when driving. Even passed emissions obd2 test, but if you let idle long enough and cycle key. Will throw p0171 code as the long term fuel trim will max out at 25%.

Offline SHOdded

  • Forum Supporters
  • Elite Member
  • *
  • Beltsville, MD
  • Thank You
  • -Given: 13013
  • -Received: 4215
  • Posts: 15887
Re: Help 2013 fusion p0171 LTFT 25%
« Reply #3 on: May 08, 2020, 05:25:14 PM »
Have you checked the sensor condition :  IAT, IAT2, MAP, O2?  At least the first 3 you can clean with maf sensor cleaner.

Fuel is used not only to power the engine, but cool it as well.  Not sure this applies here, but during extended idle,  if the fans do not kick in, raising fuel trims would be one way of controlling runaway temps.

It also may be something that needs a programming  update to fix.

Wiil dig further.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Offline TaurusAuto

  • Newbie
  • *
  • Thank You
  • -Given: 0
  • -Received: 0
  • Posts: 3
  • Ecobooster
Re: Help 2013 fusion p0171 LTFT 25%
« Reply #4 on: May 08, 2020, 07:07:28 PM »
Have checked and cleaned MAP sensor and Intake air temp sensor by air filter. MAP reads 29hg engine off and around 10 at idle. New upstream 02 sensor didn’t make a difference. Had found a exhaust bolt  backed out by where the down pipe connects. In front of that 02 sensor. Tightened all the bolts and installed new 02 sensor. Thought for sure that was it. Never sounded like a exhaust leak but I know a leak in front of sensor can throw off readings. Have not checked IAT2 guessing it’s on or near intercooler. It takes a bit to throw code but fuel trim rises quick and suddenly after a minute if that. Even from a complete cold start. Will start at 15% cold and then go to 25%

Offline SHOdded

  • Forum Supporters
  • Elite Member
  • *
  • Beltsville, MD
  • Thank You
  • -Given: 13013
  • -Received: 4215
  • Posts: 15887
Re: Help 2013 fusion p0171 LTFT 25%
« Reply #5 on: May 08, 2020, 08:05:04 PM »
Ok let me get back 2 you, may be some common issues i have not run across yet.
2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

Offline SHOdded

  • Forum Supporters
  • Elite Member
  • *
  • Beltsville, MD
  • Thank You
  • -Given: 13013
  • -Received: 4215
  • Posts: 15887
Re: Help 2013 fusion p0171 LTFT 25%
« Reply #6 on: May 09, 2020, 04:41:42 AM »
While this applies to a 2.0EB per Ford, might be worth a check
TSB 13-1-4    2.0L GTDI – ROLLING/FAST IDLE – DIAGNOSTIC TROUBLE CODES (DTCS) P0507, P0171 AND/OR P0174 – BUILT ON OR BEFORE 9/28/2012


2007 Ford Edge SEL, Powerstop F/R Brake Kit, TXT LED 6000K Lo & Hi Beams, W16W LED Reverse Bulbs, 3BSpec 2.5w Map Lights, 5W Cree rear dome lights, 5W Cree cargo light, DTBL LED Taillights

If tuned:  Take note of the strategy code as you return to stock (including 3 bar MAP to 2 bar MAP) -> take car in & get it serviced -> check strategy code when you get car back -> have tuner update your tune if the strategy code has changed -> reload tune -> ENJOY!

 

* Recent Topics

Re: Ride of The Month - July 2020!!
by bpd1151 | July 07, 2020, 10:46:47 PM
That doggone BPD guy shattered my build tho lol.Sorry......Sent from ...
Re: What have you done to your Ecoboosted vehicle today?
by 802SHO | July 07, 2020, 09:29:20 PM
I have never seen 32mpg.. good for you!I see like 14 mpg lol!  Bu...
Re: SM105K's Ownership/Performance/Maintenance Thread
by sm105k | July 07, 2020, 11:44:31 AM
On my return trip I averaged 88 mph through CA and 95 mph through AZ. ...
Re: Has anyone install custom Hood?
by sm105k | July 07, 2020, 11:07:33 AM
Ford Derrick is the owner, I pinged him back in May of last year.. att...
Re: Phenolic Spacers
by 802SHO | July 07, 2020, 09:43:41 AM
Nevermind, purchased some from my local O'Reillys for $54Sent fro...
Re: AO tune vs downpipes
by StealBlueSho | July 07, 2020, 09:37:30 AM
Matt R. said I didn't need a revision for my catted PPE's on...
Re: SHOdded Officially Retiring as Admin
by 802SHO | July 07, 2020, 05:13:28 AM
Manu you've been such a big help in so many aspects of everything...
Re: TASCA=Fail....
by SilvererSHO | July 06, 2020, 09:41:25 PM
And to confuse things even more, here's the listing for a 2013 SH...
Re: Edge ST .......Here she is
by Macgyver | July 06, 2020, 07:19:10 PM
I really like it.  How is the room?  Maybe one of those will...
Re: New SHO owner with problems
by My15SHO | July 06, 2020, 04:10:09 PM
Good luck but I don't like the sound of them being so quick to ju...

Back to top
SimplePortal 2.3.5 © 2008-2012, SimplePortal